Marktest is leading in Top 10K Sites.
WebProspector has better usage coverage in more websites categories. Including Business & Industry, Internet & Telecom, Marketing & Advertising, Computer & Electronics and 44 other categories.
Marktest is leading in Newspapers and Soccer.
WebProspector is leading in most countries, including Germany, Austria, United States, Belgium and 10 other countries.
Marktest is leading in Portugal.